<template>
	<view class="zzc_mol" v-if="isRecording"></view>
</template>

<script>
	export default {
		data() {
			return {
				isRecording: false
			}
		},
		created() {
			this.screenInit();
		},
		onUnload() {
			this.AllowScreenshots()
		},
		methods: {
			screenInit() {
				let _this = this;
				// #ifdef H5
				uni.showToast({
					title: '请在APP或者小程序环境下操作',
					icon: 'error'
				})
				// #endif
				// #ifndef H5
				uni.getSystemInfo({
					success: function(e) {

						// #ifdef MP-WEIXIN
						if (e.platform == 'android') {
							//微信小程序在安卓手机上 禁止截屏/录屏(注意：禁止后录屏动作还是会进行，但录屏后的视频是黑屏的)
							wx.setVisualEffectOnCapture({
								visualEffect: 'hidden', //传入 hidden 则表示在截屏/录屏时隐藏屏幕
								success: (res) => {
									// uni.showModal({
									// 	content: "该页面不允许录屏",
									// 	showCancel: false,
									// 	confirmText: "确定"
									// })
									console.log(res)
								},
								fail: (err) => {
									console.log(err)
								},
								complete: (res) => {
									console.log(res)
								}
							})
						} else {
							//微信小程序在IOS手机上，注意：目前微信小程序在ios上也只能通过监听录屏状态，然后通过添加view层来进行阻止，截屏暂时无法实现
							//监听用户录屏事件
							wx.onScreenRecordingStateChanged(function(res) {
								if (res.state == 'start') {
									uni.showModal({
										content: "该页面不允许录屏",
										showCancel: false,
										confirmText: "确定"
									})
									_this.isRecording = true;
								} else {
									_this.isRecording = false
								}
							})
							//查询用户是否在录屏
							wx.getScreenRecordingState({
								success: (res) => {
									if (res.state == 'on') {
										_this.isRecording = true;
										uni.showModal({
											content: "该页面不允许录屏",
											showCancel: false,
											confirmText: "确定"
										})
									} else if (res.state == 'off') {
										_this.isRecording = false
									}
								},
								fail: (err) => {
									_this.isRecording = false
								}
							})
						}
						// #endif
					}
				})
				// #endif
			},
			//安卓端禁止截屏
			NoscreenCapture() {
				let osname = plus.os.name;
				if (osname == "Android") {
					var activity = plus.android.runtimeMainActivity();
					plus.android.invoke(plus.android.invoke(activity, "getWindow"), "addFlags", 0x00002000);
				}
			},
			//安卓端允许截屏  
			AllowScreenshots() {
				let osname = plus.os.name;
				if (osname == "Android") {
					var activity = plus.android.runtimeMainActivity();
					plus.android.invoke(plus.android.invoke(activity, "getWindow"), "clearFlags", 0x00002000);
				}
			}
		}
	}
</script>

<style>
	.zzc_mol {
		background: #000;
		width: 100%;
		height: 100%;
		position: fixed;
		z-index: 99999;
		top: 0;
		left: 0;
	}
</style>
